Mechanical movement



(No Model.)

J. W. DODGE.

MECHANICAL MOVEMENT.

No. 298,671. Patented May 13-, 1884. fi s.

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J. "WESLEY DODGE, OF MALDEN, ASSIGNOR OF ONE-HALF TO WVILLIAM GORDON, OF BOSTON, MASSACHUSETTS.

MECHANICAL MOVEMENT.-

SPECIPICATION forming part of Letters Patent No. 298,671, dated MaylS, 1884.

Application filed March 7, 1884. (No model.)

To alZ whomit may concern.-

Be it known that I, J. WEsLEY DODGE, of Malden, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in Mechanical Movements, of which the following is a specification.

This invention relates to means for operating reciprocating tools which are supported and reciprocated on stocks or supporting devices held and guided by the hand of the operator, as in certain classes of machines for burnishing parts of boot and shoe soles.

The invention has for its object to provide an improved mechanical movement whereby reciprocating hand-guided tools may be operated without causing the stock held by the operatorto tremble or shake; and to this end the invention consists in a mechanical movement composed of a stock having a handle to be grasped by the operator and ,two curved segmental guides, two segmental slides adapted to reciprocate in said guides, and an arbor driven by suitable power and provided with eccentrics arranged to reciprocate said slides simultaneously in opposite directions, each slide being provided with a burnishing or other tool,while the stock is flexibly supported and connected with the motor, which rotates the above-mentioned arbor, so that the operator can move the stock and devices carried thereby in any desired direction, all of which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figure l represents a side elevation of my improved mechanical movement. Fig. 2 represents a front elevation of the same. Fig. 3 represents a side elevation showing the improved movement and means for supporting the same and rotating its arbor.

The same letters of reference indicate the same parts in all the figures.

In the drawings, a represents the stock supporting the burnishing-tools hereinafter described. The stock is composed of a handle portion or bar, 2, adapted to be grasped by the operator, and an arched portion, 3, containing segmental guides for slides 4. 4:, each of which is a segment of a circle having the same radius as the guide in which it moves. In the upper end of the stock a is journaled a transverse arbor, (I, having a pulley, e, and two eccentrics or crank portions, f f, which are connected by rods or pitmen g g with the slides 4t 4t, and when the arbor d is rotated reciprocate said slides in curved paths, the cocentrics being so arranged that the slides move simultaneously in opposite directions,

the movement of each neutralizing the jar caused by the movement of the other, so that the operators hand experiences no tremor or jar in holding the stock. The lower ends of the slides at 4: are provided with tools 5 5, adapted to perform the work for which the machine is intended. In the present instance said tools are burnishing-irons formed to act on the bottom of the shank of a boot or shoe; but it is obvious that my invention is not confined to any particular form of tools, nor to tools for any particular class of work. The stock a is in the present instance suspended by a rod, b, from a frame, 0, which is pivoted to swing vertically,and thus allow the stock to rise and fall, the rod 1) being pivoted to the frame 0, so as to oscillate in a vertical plane, and thus allow the stock to move backward and forward. The frame 0 is pivoted on a driving-shaft, p, and is provided with acounterbalancing-weight at its rear end. The forward end of the frame 0 has an arbor, Q',Wlll01l serves as the pivot for the rod 1), and has two pulleys, one of which is connected by a belt, 8, with a pulley, t, on the driving-shaft, and the other by a belt, a, with the pulley c on the arbor of the stock a.

I claim 1. Theimproved mechanical movement composed of the flexibly-supported stock a, adapted to be grasped by the operators hand, and having two segmental guides, two segmental slides adapted to reciprocate in said guides, and provided with operating-tools, and mechanism for reciprocating said slides simul taneously in opposite directions, as set forth.

2. The combination of the stock having the handle portion and the segmental guides, the to this specification, in the presence of two segmental slides 4 4, adapted to reciprocate in subscribing witnesses, this 4th day of March, IO slaid guides, and provided with tools, as 5 5, 1884.

t e arbor e 'ournaled in the stock and pro- 5 vided with t wo oppositely-projecting eccen- WESLEY DODGE tries and rods, g connecting said eccentrics Witnesses: with the slides 4 4, as set forth. 0. F. BROWN,

In testimony whereof I have signed my name WILLIAM GORDON. 1b 

